Natural selection can lead to the formation of a new species which is called a) fitness. b) mutations. c) selection. d) speciation.

Which of these is not a function of some membrane proteins? a. keeping the cell from dissolvingb. transmitting messages to cell organellesc. catalyzing chemical reactions in the celld. allowing ions to enter the cell

When an animal cell is placed in a hypotonic solution

How many codons are contained in the mrna that is produced by the “normal” dna